Double Game Odds — red / black / white calculator
The exact Double game odds: red and black each win 46.67% and pay 2×, white wins 6.67% and pays 14×. Every bet carries the same 6.67% house edge. See the payouts, expected value and spin a provably-fair verifier.
Standard 15-tile Double wheel: 7 red, 7 black, 1 white. Each tile is equally likely, so every bet has the same 6.67% edge — that single white tile is the whole house advantage.
| Bet | Tiles | Payout | Win chance | House edge |
|---|---|---|---|---|
| Red | 7 / 15 | 2× | 46.67% | 6.67% |
| Black | 7 / 15 | 2× | 46.67% | 6.67% |
| White | 1 / 15 | 14× | 6.67% | 6.67% |
Provably-fair spin. The winning tile (0–14) is derived from a SHA-256 hash of the seeds and nonce before the spin — same seeds always land the same tile, and you can't steer it.
Double game odds explained
Double (the red/black/white wheel found on crash-style crypto casinos) looks like a simple three-way bet, but the payouts hide a fixed cost. The standard wheel has 15 tiles: seven red, seven black and one white. Every tile is equally likely, so:
Because each tile is equally likely, the odds are exact and easy to verify — no combinatorics needed, just count the tiles. Red or black returns your stake doubled roughly 14 times out of every 30 spins; white is the rare 14× hit. The catch is that all three bets cost you exactly the same in the long run.
The white tile is the whole edge
Here's the key: if red or black each covered exactly half the wheel and paid 2×, the game would be break-even. But they don't — the white tile sits between them, and it's what gives the house its cut. A 2× payout on a 46.67% chance returns 0.9333 per unit; the white's 14× on a 6.67% chance returns the same 0.9333. That's a flat 6.67% house edge on every bet — noticeably steeper than dice or roulette.
Do Double systems or predictors work?
No. Each spin is independent — after five reds in a row, red is still 46.67%, not "cold". The popular tactics don't change anything:
- Martingale on red/black (double after a loss) feels safe until a losing streak plus the bet cap wipes out every small win at once.
- Chasing the white for its 14× is a 1-in-15 shot every spin, no matter how long it's been absent.
- "Signals" and predictor bots that claim to call the next color are selling a hashed, committed result they cannot see — pure marketing.
Is online Double fair?
On a provably-fair crypto casino, yes — and it's verifiable. The winning tile is committed from a hashed server seed, your client seed and a nonce before the spin, so it can be recomputed afterward and can't be altered. The Provably-fair spin tab reproduces this: it hashes the seeds and derives the tile 0–14, and the same seeds always land the same result. Fair means honest and verifiable — it does not remove the 6.67% edge, so over the long run you get back about $0.933 per $1. Only play with money you can afford to lose. 18+.